'Wei Chen' wasn't listed in the contributors list.

git-svn-id: https://svn.apache.org/repos/asf/ant/ivy/core/branches/2.3.x@1427560 13f79535-47bb-0310-9956-ffa450edef68
'Wei Chen' wasn't listed in the contributors list. (merged from 2.3.x branch)

git-svn-id: https://svn.apache.org/repos/asf/ant/ivy/core/branches/2.3.0@1427561 13f79535-47bb-0310-9956-ffa450edef68
Add '2.3' as allowed version in ivy.xml files. (merged from trunk)

git-svn-id: https://svn.apache.org/repos/asf/ant/ivy/core/branches/2.3.x@1427564 13f79535-47bb-0310-9956-ffa450edef68
Add '2.3' as allowed version in ivy.xml files. (merged from 2.3.x branch)

git-svn-id: https://svn.apache.org/repos/asf/ant/ivy/core/branches/2.3.0@1427565 13f79535-47bb-0310-9956-ffa450edef68